Product details
Danfoss 7754121 Lubricant 320SZ | POE Oil
Product Description:
The Danfoss 7754121 (320SZ) is a premium-grade POE oil essential for the optimal performance and longevity of Danfoss scroll compressors. Specially designed for use with HFC refrigerants such as R407C, R134a, and R404A, this lubricant ensures superior oil return and excellent film strength under high-load conditions. In the UAE, where HVAC systems face extreme ambient temperatures, using the correct 320SZ lubricant is critical to prevent premature mechanical wear and acid formation within the cooling circuit. This 1-liter pack is ideal for maintenance top-ups or complete oil changes during compressor servicing, ensuring the system remains clean and efficiently lubricated throughout its service life.
Key Features & Benefits:
- Optimized for SZ Scroll Series: Formulated to match the exact internal clearance and material requirements of Danfoss SZ compressors.
- Superior Thermal Stability: Maintains viscosity and lubricating properties even at high discharge temperatures common in the UAE.
- Enhanced Oil Return: Engineered for excellent miscibility with HFC refrigerants, ensuring oil returns to the compressor to prevent “dry” operation.
- Moisture Resistant Packaging: Supplied in a high-quality 1-liter sealed can to maintain the chemical integrity of the POE oil.
- OEM Quality Assurance: Using genuine Danfoss 320SZ oil protects your warranty and ensures peak system efficiency.
Technical Specifications :
| Specifications | Value |
| Manufacturer | Danfoss |
| Part Number | 7754121 |
| Oil Type | 320SZ (Polyolester / POE) |
| Volume | 1 Liter |
| Compatibility | Danfoss SZ Scroll Compressors |
| Refrigerants | R407C, R134a, R404A, R507, R410A |
| Viscosity at 40°C | 32 cSt |
| Application | Air Conditioning / Commercial Cooling |
FAQs:
- Q: Can I use 320SZ oil in an SM series compressor?
- A: No. The SM series uses mineral oil (160P) for R22. 320SZ is a POE oil designed for SZ series using HFC refrigerants.
- Q: Why is it only in a 1-liter can?
- A: POE oil is highly hygroscopic (absorbs moisture quickly). Smaller containers ensure you only open what you need, keeping the rest of the oil fresh.
- Q: Is this suitable for Dubai’s high-ambient conditions?
- A: Yes, it is the standard lubricant recommended by Danfoss for Middle East installations to ensure reliability during summer peaks.




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